<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="com.e885.util.web.*" %>
<%
  String basePath = PathUtil.getBasePath( request );
 %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath %>">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<a href="info/info.jsp">info</a>
<br>
<br>
tag base 其 href 屬性的值為：<%=basePath %><br>
info 其 href 屬性 為:info/info.jsp<br>
所以 info 的 url 為  basePath + info/info.jsp<br>
也就是 <%=basePath %> + info/info.jsp 
</body>
</html>